Inverted-burner gas-lamp.



MPATBNTED: APR. 16, 1907.

W. DB FREITAS.

INVERTED BURNER GAS LAMP.

APPLIUATION I'ILED JAN. 27,1905.

2 SHEETS-SHEET 1.

zig & iaz,llnventor: :W M W Attys.

No. 850,568. v PATENTED APRKIB, 19ml W. DE FRBITAS.

INVBRTED BURNER GAS LAMP.

APPLICATION FILED JAN. 27. 1905.

2 SHEETS-SHEET 2.

tes: I 1;; Z ,irlventor: m 'MmzQ nmys.

UNITED, STATES PATENT OFFICE.

WILLIAM DE FREITAS, OF NEW YORK, N. Y., ASSIGNOR TO CONSOLIDATED GAS COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented. April 16, 1907.

Application filed January 2'7, 1905. Serial No.v 242,848.

mantle of rare-earth oxids is rendered incandescent in a bunsen-flame; and the invention involves improvements in the operation and relative arrangement of the several parts and combinations and subcombinations of the same, as will be presently described, and more particularly pointed out in the accompanying claims.

One of the primary objects of this invention is the production of a lamp of ,the character indicated which is of simple construction, not likely to deteriorate in eflicienoy under continued usage, and which is shadowless below its horizontal plane.

Further objects are the adequate protec tion from the heat of the burners of the gassupply pipes and the air and gas mixing chamber and also the facility of manipulation of the lamp and its several parts.

Referring to the drawings, Figure 1 is a side elevation, with parts broken away and.

other parts shown in vertical section, of a gaslamp involving my invention; and Fig. 2 is a bottom plan view of the same with the glass globe removed. a I

The lamp, as shown in the drawings, is designed to be suspended from the central depending gas-supply pipe 1, which branches at an ornamental ball-joint and terminates in two substantially vertical side pipes 2 and 3, which latter are shown as straight pipes,

but may obviously assume various configurak tions to accommodate the casing or-stack 4 between them. The side pipes are mechanically joined by a cross member 5, piercing the stack near its base, and at the elbows,

formed by side pipes and cross member, the

gas-cocks 6 and 7 are located for controlling the gas-supply of the lam The burnerhead 3 is supported from t e cross member 5 below the level of the same and has communication, through the section or cross-pi e 9 of that member, with the side pipe 2, f fom v which it receives its supply of gas, the air necessary for complete combustion being admitted and mixed with the gas by means of the mixing-chamber 10, forming a part of the section 9 of the cross member, but exterior to the stack. The burner-headmay beconveniently formed as a spider, and is shown in the present case as having four arms opening downwardly and internally'threaded to receive the upper ends of'the burner-tubes 11. The latter are short sections of tubing provided with shoulders 12 for holding a heatdeflecting' plate 13 and also with mantlesupporting means, as shown in the drawings, the burners of course being arranged to roject their flames downwardly. The de ce- "tor-plate 13 is composed of a layer or disk 14 of metal enameled on its under side, so as to serveal so as a light-reflector, and preferably provided with a peripheral flange giving it the shape of a dish, and a backing 15, of refractory material-for example, asbestos.is contained within this receptacle. The plate is of greater diameter than the diameter of the. burner-head or spider and than the diameter ofthe body of the stack and is formed with; apertures of appropriate number and position to receive the several burner-tubes when they latter are screwed into their respective spider-arms, the deflector-plate in this manner becoming securely held in proper position between the burner-head and the shoulders 12.

While only four burnertubes are illu'sv trated herein, it will of course be understood that a greater or less, number may be employed, as desired, provided the deflectorplate and burner-head are correspondingly modified. The mantles X and their mode of attachmentto the burner-tubes or other support form no part of the present invention, and as the kind shown in the drawings is one familiar in the art a description of' the same will not be necessary.

The'casing 4, which forms the stack, provides the escape for the burned gases and is supported mainly by the cross member 5, but may also be reinforced and steadied by the rod 16, extended centrally from the pipe 1 through the cap of the stack, with its lower end seated in a suitable socket in the cross member. The base portion of the stack is flared outwardly and around the burner head, so that the latter is located beneath the stack ox within the mouth of the-flare, and the heated gases rising, from the edge of'thc "deflector-plate pass freely upward through the stack in obvious-manner. It will be noted that theescape ofburnt gases is thus deflected away from the burner-head and likewise isolated from the airand gas mixing chamber, which are featuresof importance vertica tube 21, passingthrough the plate 13v in the present invention. The flanged edge of the globe-ring 17 is secured to the lowest edge of the stack, with the inner margin of the reflector-shade 18- interposed between them, the joint between the stack, ring, and reflector being formed in a plane above the horizontal plane of the-mantles and preferably above-,the deflector=plate, so that the li ht from the mantles. will be unobscured.

T e globe-ring also located above the level of'the mantles'and is perforated, asshown, to admit air to the burner. The glass globe mounted in the frame 17, hinged to rin 17, is also perforated to permit an upward raft of air.

The gas-cocks6 and 7 above mentioned, are thus located above the reflector-shade, and as the latter is fre uently desired to be of comparatively large iameter it is provided with perforations, as at 1 9, to receive links orother cock-operating connections 20, which, however, do not extend sufliciently down Ward to interfere with the radiation of light in all directions from the burner. As shown herein, the cock 6 is operated by a lever 20, oscillating on. a horizontal axis. a

The ilot-l'ght is composed of. a central and terminating 1n a .cap' or deflector plate 21. Four pilot-burner tips 22 are disposed upon the end of the tube just above the deflector-plate 21-and arranged to project their flames res ectively toward each mantle,

carbonization of the gas at the tips being pre-' vented by the protection afforded by the plate 21' The upper end of the tube 21 is threaded .ontd the tubing 21", which leads to the-section 9" of the cross member ,5, which has a connection with the side pipe 3 through the pilot-cock 7, the connection from pilot to side'pipe being isolated from the sup lypassage for the burner-head above descri ed. The pilot-cock consists of a-plugu23, held against its seat 24 by means of a spiral spring,

and the lower extremity of the plug is pro- "vided with a ring or handle wherebyit may be operated.- The plug is bored internally,

and also rovided with a lateral port 25, through w ich a'definite supply of as is allowed to constantly pass in order to esp the ilot-burner lighted, this supply bein reguv atable by means of the nee le 26 wit 'n the plug, which may be screwed toward or from the end of the internal bore of the plug. By

pulling down the plug 23 increased supply of gas is admitted to the burner, which enof the various parts hereinbeforereferred to may be considerably modified from that shown in the drawings and that'various other features may be applied to the apparatus shown without departing from the spirit and scope of the following claims.

Having described my invention, what I claim, and desire to secure by United States Letters Patent, is

1. In. an inverted-burner gas-lamp, an inverted burner-head and a shouldered b urnertube attached, thereto, in con'ibination with an apertured deflector-plate receiving said tube and adapted to be held between the shoulder thereof and the said burner-head.

2, In a gas-lamp, a burner-head or spider, a plurality of inverted burner-tubes carried thereby each provided with means for sup-.

porting a mantle and with a shoulder above said means, in combination with a heat-deflectorpla'tesupported upon said shoulders.

'- 3. In an inverted-burner gas-lamp, an in;

verted burner-tube, means or supporting a mantle in association therewith, and a dishlike deflector-plate having a fillingof refractory material and an aperture for receiving said tube.

IOO

4. In an inverted-burner as-lamp, an inverted burner-tube,'means or supporting a mantle at the end thereof and a heat-deflector ada ted to be located above said mantle consistmg of a dish-like receptacle containing a. filling of refractory material.

5. In an inverted-burner gas-lamp, a gassupply pi e and burner-head, an inverted burn'er-t'uhe depending from said head adapted to su port amantle and a deflector of reater iameter than said head interposed between the same and the mantle and a backing of refractory material for said deflector. l

' 6. The combination in an inverted-burner gas-l amp having an inverted burner-tube and .a deflector-plate 'above the lower end of the same, of a casing above said plate forming a stack, a gas-sup ly pipe for said tube entering said casing t rough the lateral wall there-- of and above the deflector-plate, and an air and gas mixing chamber for said tube eXteriorto said casing.

7. An inverted-burner as-lamp, comprising an inverted burner-tn e adapted to en gort a mantle, a heat-deflector above t earne thereof and a casing above said"deflector forming an escapepassage for the of inverted burner-tubes, a deflector ,between said head and the openings of said tubes, and

a casing above said deflector, adapted to form aii' escape-passage for the burned gases, in combination with a gas-supply pipe provided with an air and of said passage.

9. In an inverted-burner gas-lamp, a stack and a horizontal cross-pipe passing transversely through the same, a burner-tube con-' nected with said pipe to roject its flame downwardly and means or supporting a 'mantle in said flame, in combination with a deflector-plate below the cross-pipe and an air and gas mixing chamber in said crosspipe exterior to the stackf 1 10. In a gas-lamp, a central depending support and .two side pipes connected therewith in combination with a cross-pipe, a burner-head carried by said cross-pipe, a stack mounted on said cross-pipe abovevthe burner-head, and meansfor detachably con nectin said cross-pipe with the side pi es.

' 11. n a gas-lamp, a central depen ing support and two side pipes forming terminati ons thereof, in combination with a cross-pipe detachably connected with said side pipes, a burner-head carried on said cross-pipe, and a rod extended from said central support into engagement with said cross-pipe.

a 12. In an inverted-burner gas-lamp, a central depending support terminating in two side pipes, a cross-pipe, detachably connected with said side plpes, a burner-head and stack 1 carried by said crosspipe between the side pipes, and a reinforcing-rodextended from s ald central support, through the stack, and

seated in a recess in said cross-pi e.

13. In a gas-lamp, a centra depending Support and two "side pipes forming terminations thereof, in combmation with a crosspipe, a burner-head carried thereby, elbow- -unions joining the ends of said cross-pipe to theends of said side pipes and a as-controlling'cock formed in one of sai elbow- 14. In aninv'erted-burner gas-lamp, a central depending support, terminating in two substantially vertical side members and a verticalstack disposed between them, a cross member piercing said stack near its base and adapted to support the burner-head beneath the same, incombination with a reinforcingrod extended from said central support through the stack to said cross member.

15. ply-pipe; a burner-head connected with and inverted-burner gas-lamp, comprising a burner-head provided with, a plurality gas mixing chamber outside an inverted-burner gas lam-p, a supdepending therefrom, a plurality of burner- 6 5 and containing said burner-head but excluding the said mixin chamber, and a heat-deilector of greater diameter than-the body of the stack located above said flames.

tral depending supply-pipe term nating in side pipes, and a stack supportedbetween the side pipes, in combination with an inverted burner beneath the stack fed b one of said sideipi' by the other side pipe.

18. In an inverted-burner gas-lamp, a stack and gas-supply pipes on o posite sides thereof, a cross member joining tli as-lamp a .wardly, in combination with a stack covering 7 5 17. In an inverted-burner gas-lamp, a een- 8o pes and a pilot-light for said burner fed eside pipes and forming a-support for said stack,in 00n1 9o bination with an inverted burner having a gas supply connection through said cross member with one side pipe ,and apilot-light having an isolated gas-supply connection through said cross member with-the other 5 side pipe. j 19. 11 an inverted-burner gas-lamp, a cross sup orting member with one end provided wit a passage containing a gas-mixing chamber and the other end provided with an isolatedpassage, a burner-head supported by said member and connected with the firstmentioned passa e and a pilot-light for the burner connected with the isolated passage.

- 20. In an inverted-burner gas-lamp, a cen tral vertical stack and side pipes, a cross member joining said pipes, a burner-head and a pilot-light burner supported on, the cross member and having iso ated gas-supply connections therethrough respectively to the side pipes and a cock at each end of the cross member for controllin the said connections. 21 In an invertedurner gas-lamp, side cross member joining said pipes, an inverted burner depending therefrom having connection with a side pipe therethrough' and a controlling-cock for said connection atthe elbow of side pipe and member, in, combination with a reflector supported by said stack below the cross member and-a perforation in the reflector receiving the operating means of said cock." 7 j V l I 22-. In an inverted-burner gas-lamp, the combination with a burner+head provided with one Jor more burner tubes arranged to) project their flames downwardly, and mantle supporting means, of 'a stack; for the escape of pipes and a stack supported between them, a

gases, a reflector and globe-base both joined to the base ofthe stack on a line above the of a pilot-light centrally disposed with rehorizontal plane of the. said mantlei 23. In an inverted-burner provided with a plurality of burner-tubes ar ranged to project their flames downwardly,

spect to said tubes and a gas-supply connection for said pilotiarranged above the ldwer' ends of said tubes.

24'. In an inverted-burner gas-lan1p-, the' combination with a plurality of inverted burner-tubes, of a pilot-light, comprising a vertical tube rovided with a plurality of gas- 4 apertures an a protecting-plate beneath the latter, and'g aasupply connections for-said pilot-light arranged above the lower ends of said burner-tubes. v

25. In an inverted-burner gas-lamp, the combir'iation with a plurality of inverted burner-tubes, of a pilot-light comprising a vertical tube provided at'its lower end. with i i an attached deflecting-plate, a plurality of two subscribing witnesses.

burner-tips on said tube above the plate respectively arranged to project their flames toward the burner-tubes; I as-lamp, the

combination with the inverte burner-head" 26. In. an inverted-burner gas lamp, a burner-head, an inverted burner tube there'- on adapted to project its flame downwardly, and a heat-deflector between said burnerhead and the flame, in combination with a pilot-lightlocated in an aperture in said deflector."

27. In an inverted-burner gas-lamp, a burner-head and an inverted burner-tube adapted to project its flamedownwardly, in combination with a heat-deflector located in aposition above said flame and a pilot-light carried by said deflector. 1

In testimony whereof I have signed my name to the specification. in the presence of.

' WILLIAM DE FREITAS.

Witnesses:

H. G. IQMBALL, WM. J. CLARK 

